DC/AC power converting apparatus including DC component remover
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United States of America Patent
Stats
-
Apr 30, 1991
Grant Date -
N/A
app pub date -
Sep 21, 1989
filing date -
Sep 26, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a DC/AC power converting apparatus, a DC component is removed from an AC output. The DC/AC power converting apparatus includes: a DC source for supplying DC power; a DC/AC inverter circuit for inverting the DC power into AC power; a transformer for transforming the AC power to obtain desirable AC power; a detector for detecting an output signal derived from the DC/AC inverter circuit to produce an output detection signal; a calculation circuit for performing a control calculation to enable the output detection signal to follow a reference signal, whereby a first output instruction signal is derived; and, a DC component remover for removing a DC component from the first output instruction signal to derive a second output instruction signal inverting operation of the DC/AC inverter circuit is controlled based upon the second output instruction signal to prevent DC magnetization of the transformer.
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